Oil burner



1,567,996 p 29 192 5 1.. ROGERS 0IL BURNER Filed Dec. 22, 1924 2 Sheets-Sheet 1 l luvmdo'n L. R o sa as L. L. ROGERS OIL BURNER Filed bed. 22

1924 I 2 Shets-Sheet 2 wuzmtoz attorney Patented Dec. 29, 1925.

UNITED STATES LUCIUS L. ROGERS, or TEXARKANA, TEXAS.

OIL BURNER.-

Application filed December 22, 1924. Serial Iva 757,512.

To all whom it may concern:

Be it known that LUCIUS L. Rooms, a citizen of .the United 7 States of America, residing at Texarkana, in the county of Bowie and State of Texas, has invented new and useful Improvements in Oil Burners, of which the following is a specification.

The purpose of the invention is to improve the construction of oil burners for use in connection with steam generating boilers, particularly of the locomotive type, and it contemplates the 'provisionof means for the employment of steam to carry the fuel oil forward on the injector principle, at the same time trapping the water or moisture present in the steam so thatthat may not be present inthefuel mixture and thoroughly mixing the fuel with the steam prior to admissionto the combustion chamber.

A further urpose is to simplify the construction of urners of this type so as to I reduce. the number of parts and yet make the same susceptible ofconsiderable machining when necessary to adapt the burner to the special conditions under which it may beused. 7

'With these general purposes in view, the invention consists in the constructidh and combination of parts of which a preferred embodiment is illustrated.

In the drawings:

Figure -1 is a view inside elevation showing the invention applied in operative position with reference to the fire-box of a locomotive, the latter being indicated in dotted lines.

Figure 2 is a longitudinal vertical sectional view on an enlarged scale of the burner and separator.

Figure 3 is a transverse sectional view taken on a plane diametrically of the fuel intake.

Figure 4 is a bottom plan view of the upper section.

Figure 5 is a top plan view of the division plate.

Figure 6 is a top plan view of the lower section.

The essential elements of the burner are the upper section l, lower section 2 and interposed division plate and gasket 3, the sections being secured together by bolts i extending through flanges 5 which are continuous around the sections but omitted at the nozzle end 6. The fuel line 7 connected to anysuitable' source of supply is tapped into the upper section 1 at the rear end of the latter, as indicated at 8, and interiorly the upper section is dished out on the under face to provide a fuel chamber 9, disposed in which are the transverse series of separating pins 10. The units of adjacent series are staggered and by this means the fuel which is admitted to the chamber 9 is distributed by the pins throughout the length and width of the chamber. The pins 10 at their free ends terminate flush with the bottom plane of the flange 5 so as to have end contact with the upper face of the division plate 3.

The lower section 2 is dished out on the top face to provide a steam chamber 11 which is placed in communication with a steam supply by means of the pipe or conductor 12 which is tapped into the lower section, as indicated at 141, a separator 15, hereinafter described, being disposed directly below the steam inlet 14 to trap the water and other moisture contained in the steam. The steam chamber 11, the top of which is defined by the bottom of the division plate 3, at its forward end terminates short of the forward end of the fuel chamber for a purpose hereinafter described.

The mixing chamber 16, which is defined by the upper and lower sections which, at the ends remote from the dished out portions, are recessed or cut away below the level of the flanges, is provided, at an intermediate pointin its length, with series of transverse pins 17 set in the under face of the upper section 1 and extend almost to the upper face of the bottom section 2, being spaced from the latter by the extensions 18 of the division plate which terminates at the forward end of the chamber 9 and is beveled off at said forward end, as indicated at 19, so that the fuel may flow freely into the mixing chamber and thereby be driven forward by the steam from the steam chamber which enters the mixing chamber below the division plate. The fuel oil and steam encountering the mixing pins 17 are thoroughly mixed prior to ejection through the nozzle 6 which is provided with a lip 20 formed as a projection of the lower section 1.

The steam chamber 11 terminating short of the fuel chamber 9 provides for the ad mission of the steam behind the fuel oil and thus secures the injector action sought, so

tively distributed in the fire-box which is indicated at 21 for dissipation on the boiler indicated at 22.

The division plate 3 serves as a gasket between the two sections, as well as a wall dividing the fuel and steam chambers.

It is a purpose to make the sections 1 and 2 of cast metal with walls as thick as may be practicable when the parts are first cast. Thus, sufficient stock will be provided for the machining ofthe sections to reduce them in thickness to meet conditions under which the device may be used. Also, the ports or openings at 14 and 8 may be enlarged for tapping to permit increasing the size of the fuel and steam conductors which may be attached to the device.

In order that the steam admitted to the steam chamber may be as freeas practicable from moisture or water, the trap 15 is placed directly below the intake 14 of the steam chamber and this trap preferably comprises a cylindrical casing 23 with a cap 24rdetachably secured thereto, preferably by a threaded joint, as indicated at 25, a T 26 having its cross leg engaged with the lower section 2 at l leand with the top2at of the casing and the steam line being connected with the T at the latter leg 27.

lVithin the casing there is'a float 28 carried ona float bar 29 having at its lower end a valve 30 from which depends a stem 31, the stem being disposed axially in a depending tubular extension'32 formed on the bottom of the casing" 23. The stem at its lower endisslidably mounted in'a guide 33 connected to and closing the lower end of the tubular extension and the latter being provided witha lateral port 34 with which a water discharge pipe. 35 is connected. The valve 30 is designed for engagement with a seat 36 removably mounted in the bottom of the casing and axially aligned with the tubular extension.

The float bar at its upper end is formed with a reduced extension 37 slidably engaging a guide 38 detachably mounted in the cap2i of the casin r a As the steam enters the steam chamber, water or heavy moisture drops down through the cross leg 26 into the casing 23 and when snflicient has accumulated in the casingthe float is elevated, thus lifting the valve 30 from its seat and the water is dischargedinto the tubular extension 32 and thence into the discharge pipe 35.

In order to cushion the valve in the opening and closing movements, the stem 31 is encircled by ;a compression spring 39 abutting at one end the valve on the under face and at the other end abutting the top face of the guide cap 83.

The. invention having been described, what is claimed as new and useful is:

1. An oil burner comprising complemental flanged castings and an interposed combination gasket and division plate, and means for securing the castings and division plate together the upper of said castings being dished on its under face to provide a fuel chamber and the lower casting being dished on the upper face to provide a steam chamber whose forward end terminates short of the forward end of the fuel chamher, the division plate terminating at the forward end of the fuel chamber, both castings beyond the forward end of the division plate being recessed ontheir facing sidesto provide a mixing chamber in communication with both the steam and fuel chambers.

2. An oilburner comprising complemental flanged castings andan interposed combination gasket and division plate, and meansfor securing the castings and division plate together, the upper of said castings being dishedon itsunder face to provide 'a fuel chamber and the lower casting being dished on the upper faceto provide a steam chamber, the forward'end of which terminates short of the forward end of the'fuel chamber, the division plateterminating at the forward end of the fuel chamber and being provided with extensions, both castings being recessed'ontheir facing sides to provide a mixing chamber in communication with both tliesteam chamber'and' the fuel chamber, and the extension of the said division plate constituting thegasket in the zone of the mixing chamber.

An oil burner comprising complemental flagged castings and an interposed combination gasket and division plate, and means for securing the castings-and division plate together, the upper of said castings being dished on its underface'to provide a fuel chamber and the lower casting being dished on the upper face to providea steam chamber, the forward end of which terminat'es short of the" forward end of the fuel chamber, the division plate terminating at the forward end of the fuel chamber and bei'ngprovided with extensions, both castings beingrecessed on their 'fa'cingsides to provide a mixing chamber in communication with both the steam chamber and the fuel chamber, and the extension of the said division plate constituting the gasket in the zone of the mixing chamber, the upper casting being provided with" fuel spreading means in the fuel chamber and with mixing means in the inixii'ig chamber.

41. An oil burner comprising complemental flanged castings and an interposed combi'nation gasket and division plate, bolts passing through the flanges and through the division plate for securing the three together, one of said castings being dished on the under face-to provide a fuel chamber and the other being dished on the upper face to provide a' steam chamber which terminates at its forward end short of the fuel chamber, the division plate terminating at the forward end of the fuel chamber, said castings being recessed on their facing sides 5 to define a mixing chamberand the division plate being formed with extensions consti tuting a gasket between the castings where they define the mixing chamber, the mixing chamber communicating with a fuel nozzle and the lower casting being formed with a lip or extension disposed at the lower plane 0 said fuel nozzle.

,In' testimony whereof he afiixes his signature.

LUOIUS L. ROGERS. 

